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  amanda jarmey,   Thanks for your question.    There are a couple of possibilities that come to mind after reading your post.  It sounds like you need to be checked again with another EKG.  If your tachycardia (rapid heart rate) is a sinus tachycardia (electrically normal type of rhythm originating from your natural pacemaker), then underlying causes need to be ruled out.  The first is an overactive thyroid, which is more common in females and usually causes a rapid pulse.  It could also cause sweating, anxiety, hair loss (eyebrows and front of scalp), weight loss, diarrhea, poor tolerance of heat, and occasionally, rapid cardiac arrhythmias (abnormal rhythms).  This can be checked with simple blood tests, and if abnormal, more thyroid evaluation will be needed.    Another area to check out is the lungs.  Underlying lung disease such as asthma, chronic bronchitis, and emphysema, can cause fast heart rates, as well as a cough, sputum production, and shortness of breath.  A chest X-ray can be normal in asthmatics.   Be sure to have a blood count repeated, as anemia can also be a cause of rapid pulse rates.  Also have your protein levels repeated.   Cardiac arrhythmias can cause much of your symptoms.  If an EKG is negative, then ask about a 24 hour monitor of your heart.  Some abnormal rhythms are intermittent and a longer period of monitoring is needed to "catch" it.    I have to agree that something is going on, especially with your symptoms in early July.  If this next evaluation is not fruitful, ask for a consultation with a cardiologist.    Best wishes and feel better.   Martin Cane, M.D.